256498076 has 12 divisors (see below), whose sum is σ = 449028720. Its totient is φ = 128204160.

The previous prime is 256498049. The next prime is 256498087. The reversal of 256498076 is 670894652.

It is a self number, because there is not a number n which added to its sum of digits gives 256498076.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3905 + ... + 22983.

It is an arithmetic number, because the mean of its divisors is an integer number (37419060).

Almost surely, 2^256498076 is an apocalyptic number.

It is an amenable number.

256498076 is a deficient number, since it is larger than the sum of its proper divisors (192530644).

256498076 is a wasteful number, since it uses less digits than its factorization.

256498076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22444 (or 22442 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 47.

The square root of 256498076 is about 16015.5573115643. The cubic root of 256498076 is about 635.3719489940.

The spelling of 256498076 in words is "two hundred fifty-six million, four hundred ninety-eight thousand, seventy-six".